[Samsung Galaxy S9+ Questions & Answers] dinysam:
Samsung Galaxy S9 – Intermittent silence during calls then audio comes back

Please post your country and service provider so I can update the appropriate list if you are (or are not) having the same problem with your new S9.

BASED ON REPORTS THIS AFFECTS MODELS : SM-G960F (S9) & SM-G965F (S9+) with Chipset Exynos 9810

4 to 20 second SILENCES HAVE BEEN REPORTED WHEN USING SIM CARDS FROM THESE PROVIDERS:

- Australia (Woolworths; Aldimobile; Lycamobile with VOLTE off; Telechoice; Vodafone with VOLTE on)

- Belgium (Proximus)

- France (Orange; SFR; Free Mobile)

- Germany (?)

- Hungary (Telekom)

- India (Airtel; Idea; Jio; Vodafone-missing calls)

- Ireland (EE, Vodafone-up to 30 seconds silence)

- Israel (Suing Samsung: http://piunikaweb.com/2018/04/20/breaking-samsung-hit-with-lawsuit-over-galaxy-s9-call-issues/)

- Italy (Windtre; TIM; Vodafone; H3G)

- Jordan (?)

- Malaysia (Maxis, Digi)

- Montenegro (T-Mobile) S9+ duos, European model not USA model

- NZ (Spark)

- Poland (TMobile; PLAY brand - no VOLTE)

- Russia (Beeline)

- Serbia (MTS, Telenor)

- Spain (Yoigo; Vodafone; Movistar)

- Sweden (Comviq , Telia - VOLTE off-silences; VOLTE on–drops calls)

- UK (EE; Sky; Vodafone; VM-missed calls; Three; O2 - S9&S9+)

- USA (Sprint; T-Mobile) - check phone models -possibly bought in Asia.

NO SILENCE DURING CALLS SO FAR:

- Australia (Telstra SIM)*

- USA (MetroPCS) - different chipset/network protocols?

*Note: No silences using Telstra SIM (Australia) but ~6 second silences using SIMS from Telstra’s MVNO partners (piggyback service provider e.g. Aldimobile) – capped and limited 4G network: https://www.gizmodo.com.au/2016/04/aldi-mobile-woolworths-get-4g-on-telstras-network-from-today/ which Implies that the Israeli’s lawsuit is correct – an incompatibility with certain networks.

Please post your country and service provider so I can update the appropriate list if you are (or are not) having the same problem with your new S9.

FORUMS DISCUSSING THIS S9 SILENCE DURING CALLS ISSUE:

• Multiple Articles: [Updated Continuously] Galaxy S9 users around the globe reporting call dropping issue: http://piunikaweb.com/2018/03/26/galaxy-s9-users-around-the-globe-reporting-call-dropping-issue/

• S9 speaker phone cutting out on call: https://eu.community.samsung.com/t5/Galaxy-S9-S9/S9-speaker-phone-cutting-out-on-call/td-p/451835

• S9 - Problems with Calls?: https://xdaforums.com/showthread.php?p=75942578

• Australia Whirlpool - Samsung S9 & S9+ problems/faults/defects: http://forums.whirlpool.net.au/archive/2713222

• France https://eu.community.samsung.com/t5...appel-inopiné-avec-Samsung-Galaxy/td-p/466277

• Germany: https://www.inside-handy.de/news/48810-samsung-galaxy-s9-telefonie-problem

• Israel: Lawsuit - http://piunikaweb.com/2018/04/23/breaking-details-of-lawsuit-filed-against-samsung-over-galaxy-s9-ca...

The update did not help - Many purchasers of the Galaxy S9 and S9 Plus still suffer from audio malfunction: http://m.ynet.co.il/Articles/5231153 (Google Translate to English)

•Spain: https://www.htcmania.com/showthread.php?t=1408282

Only about 10% experiencing drop outs on S9/+ calls: https://eu.community.samsung.com/t5/Galaxy-S9-S9/Only-about-10-experiencing-drop-outs-on-S9-calls/m-...

• (long silences?) DROPPED CALLS on G965F (S9+): https://xdaforums.com/galaxy-s9-plus/help/multiple-dropped-calls-galaxy-s9-plus-t3763887

Other useful References:

• S9 MODEL VARIANTS AND CHIPSETS PER REGION : http://www.teamandroid.com/2018/02/27/samsung-galaxy-s9-model-numbers-variants/